Let me ask you this.
We've all had that favorite game that we eagerly awaited the sequel for. I don't mean those never-ending game series with endless sequels like Final Fantasy, I mean that SECOND game, the true sequel to an original favorite. There have been many many classic "top ten" type sequels, from the memorable Mortal Kombat II and Sonic II through recent greats like Metal Gear Solid 2 and Tony Hawk 2...
What "follow up to the original" left you wishing it had been done differently?